Transition metal oxide compositions
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United States of America Patent
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Issued Date -
Feb 12, 2004
app pub date -
Sep 16, 2003
filing date -
Oct 31, 2000
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Abandoned
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Abstract
The invention provides transition metal oxide mesophase compositions that include a sulfur-containing anionic surfactant and processes for preparing them. The processes involve conversion of a transition metal oxide precursor to a transition metal oxide mesophase in the presence of a sulfur-containing anionic surfactant templating agent, under conditions effective for formation of a transition metal oxide mesophase composition that includes the surfactant. The invention further provides processes for replacing at least part of the surfactant in such a transition metal oxide mesophase composition with anions. The anions may be anions of one or more oxyacids, thereby producing a transition metal oxide mesophase composition that includes a first transition metal oxide and a lesser amount of a second transition metal oxide dispersed on the first metal oxide.
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